Question

Write the chemical equations for the following activities.

(a) NaOH solution was added to HCl solution.

(b) Zinc dust was added to dilute H₂ SO₄ .

(c) Dilute nitric acid was added to calcium oxide.

(e) Carbon dioxide gas was passed through KOH solution.

(f) Dilute HCl was poured on baking soda.

Answer 1

$$\begin{gathered} a.\mathrm{HCl}\left(\mathrm{l}\right)+\mathrm{NaOH}\left(\mathrm{l}\right)\to \mathrm{NaCl}\left(\mathrm{s}\right)+{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)+\mathrm{Energy} \\ \mathrm{b}.\mathrm{Zn}\left(\mathrm{s}\right)+{\mathrm{H}}_2{\mathrm{SO}}_4\left(\mathrm{l}\right)\to {\mathrm{ZnSO}}_4\left(\mathrm{s}\right)+{\mathrm{H}}_2\left(\mathrm{g}\right) \\ \mathrm{c}.\mathrm{CaO}\left(\mathrm{s}\right)+2{\mathrm{HNO}}_3\left(\mathrm{l}\right)\to \mathrm{Ca}({\mathrm{NO}}_3{)}_2(\mathrm{s})+{\mathrm{H}}_2\mathrm{O}(\mathrm{l}) \\ \mathrm{d}.\mathrm{KOH}(\mathrm{l})+{\mathrm{CO}}_2(\mathrm{g})\to {\mathrm{KHCO}}_3 \\ \mathrm{e}.{\mathrm{NaHCO}}_3(\mathrm{s})+2\mathrm{HCl}(\mathrm{l})\to \mathrm{NaCl}(\mathrm{s})+{\mathrm{H}}_2\mathrm{O}(\mathrm{l})+{\mathrm{CO}}_2 \end{gathered}$$